Irish GALLAHAN on 1850 Iowa Census

While researching my branch of the GALLAHAN family, I ran across records for some Irish GALLAHANs on the 1850 Census of Dubuque County, Iowa. I could find no connection to my own GALLAHANs but this information may help someone else:Catherine GALLAHAN, female, age 32, Born in IRELAND; listed with dependents: Mary GALLAHAN, female, age 13, Born in PA; Hugh GALLAHAN, male, age 8, Born in PA; and Rose Ann GALLAHAN, female age 3, born in PA.Also on same census was: Genargo GALLAHAN, male, age 44, Born in Ireland with profession listed as Farmer.